⚛️ JET Tokamak — Culham Centre for Fusion Energy
Europe's largest operational fusion reactor, located in Oxfordshire, United Kingdom.
📌 Fast Facts
- Location: Culham, Oxfordshire, near Oxford, England
- Reactor type: Tokamak (toroidal magnetic confinement)
- Record achievement: 69 megajoules sustained fusion energy, February 2022
- Operational since: 1983
JET Tokamak is a large tokamak fusion reactor in Oxfordshire, United Kingdom, that has served as Europe's primary facility for advancing controlled nuclear fusion research. In February 2022, JET achieved a historic milestone by generating 69 megajoules of sustained fusion energy—more than double the previous world record—demonstrating that controlled fusion reactions can be reliably produced and maintained on Earth. As of 2026, JET continues to operate as a critical research platform for ...